package hanshunping.project.smallchange;

import java.util.Scanner;

public class SmallChangeSys {
    public static void main(String args[]) {
        boolean loop = true;
        Scanner sc = new Scanner(System.in);
        String key;

        do {
            System.out.print("零钱通系统\n请选择1-4");
            key= sc.next();
            switch (key){
                case "1":
                    break;
                case "4":
                    loop=false;

            }



        } while (loop);
    }
}
